Transom-operator.



S. '1. HOEXTERa TRANSOM OPERATOR.

APPLICATION FILED MAR. Ia, I9|4.

Patented Dec. 28, 1915.

-HEETI.

2 SHEETS /nventor Attorne.

Witnsse my@ fg S. 1. HOEXTER.

TRANSOM OPERATOR.

APPLICATION FILED MAR.|8,1914.

1,165,41 1. Patented Deo. 28, 1915.

2 SHEETS-SHEET 2.

Witnesses W Attorneys- IOLUMBIA PLANOGRAPH C0..wASHlNGToN, D. c.

naar ern ramena* orma.

SAMUEL HOEXTER, OF ANN ARBOR, MICHIGAN, ASSIGNOR TO ERNEST E. BELL, OF GLEN RIDGE, NEW JERSEY.

TRANSOM-PERATOR.

To all whom t may concern.' i Y Be it known that LSAMUEL J. HOEXTER, a citizen of the United States, and a resident of Ann Arbor, county of VVashtenaw, 'and State of Michigan, have invented a certain new and useful Mechanical Movement Particularly Applicable to Transom-Operators, oiiwliich the following' is a specification.

This invention relates to devices for operating transoms and other mechanism in which it is desirable to have a considerable multiplication of power, and in which it is also desirable to have a positive lock, where by when the source of power is removed, Ythe parts subjected to load will remain immovable in position. These and further objects will more fully appear from the following specification and accompanying drawings, considered together or separately. r

.Figure 1 is a view partly in section of a portion of a transomoperator, with one embodiment of' my invention applied thereto, the section being taken on the line ldrl of FigLQ. Fig. 2 is aside view of the same, partly in section, the section being taken on the line 2 2 of'Fig. l. ,Fig. 3 is a view of the operating parts of a portion. of my .device in one position. Fig. l is a similar view of the parts in another position. Fig. 5 is a similar View of the parts in still another position. Fig. 6 is a sectional view taken on the line 6 6 of Fig. 3. Fig. 7 is a Vview similar to Fig. 3 of a modification. Fig. 8 is a section on the line 84-8 of Fig. 7. Fig. 9 is a view similar to Fig. 3 of still another modification.` Fig. l0 is a similar view of still another modification. Fig. 11 is a view on the line 11TH of Fig. 10. Fig. 12 is a view similar to Fig. 3 of still another modification.

In all of the views, like parts are designated by the same reference character'.

v Figs. 1 and 2 represent my invention applied to a transom operator. In the drawings, t represents the transom, b the frame, c the crank connected to the transom, and by means of which it is opened and closed, CZ a link connected to the crank, c a rod mounted in `suitable guides so as to bev capable of vertical movement. This rod is connected to the link (Z. f is the case containing the mechanism for moving the rod and g the handle protruding from the case, `and by means of which the mechanism is operated.

Figs. 5 to 12 inclusive represent .the particular mechanism for actuating the rod e Y Specification of Letters Patent.

Application ied March 18, 1914.

Patented Dec. 28, 1915. Serial No. 825,473.

through a toothed member which may be the rack of Figs. l to 9 or the wheel of Figs. 10 to 12; 1 represents the axle or shaft. On this shaft are a plurality of eccentrics 2. Associated with each eccentric is an arm 3. 0n one side of' the arm is a notch or slot 5. 6 is a pin lying within the notch or slot. 7, 7 are plates on each side of the arms of the eccentrics. Two plates are connected together by the pin 6. Other fastenings, as shown in Fig. 2, may be employed, so that the case y is produced. The eccentrics are preferably symmetrically arranged or disposed, as shown in Fig. 3. They are preferably of the same size, and have the same degree of eccentricity. I prefer to make the shaft, where it engages with the eccentric, of polygonal.cross-section. By making it of this shape, withas many sides or multiples thereof as there are eccentrics, and having the openings in the eccentrics of the same shape, they maybe threaded on the shaft,

and will automatically dispose themselves in symmetrical relation. This simplifies the assembling operation, and makes the arrangement of the eccentrics exact. rThe number of teeth on the arms depends upon the circumstances. ln connection with the mechanism described, is a toothed member 8. This toothed member has a face as broad as the combined width or thicknesses of all the arms. In Figs. 8, 4C and 5, the toothed member S is a rack. It is supported in suitable guides wit-hin the case f, so that it will be maintained at a definite distance from the shaft 1.

The operation of the device is clearly shown in Figs. 3, 4 and 5. Letit be assumed that the shaft 1 rotates in the clockwise direction shown; then the toothed part ofeach arm will successively engage with the toothed part of the member S, and move the latter downward in the direction indicated by the arrow. The pin 6 and notch or slot 5 prevents the arms from rotating, and compels the toothed portions of the arms to move through an ellipse with its greatest aXis in a vertical plane. The teeth on the arm, therefore, come in Contact with the teeth on the member 8, and engage with these teeth and move the member 8 in the direction in which the arm is being moved, and then will release themselves from en- Vgagement with the teeth on the member 8.

ment with the toothed member 8. Figs. 'l'

and 8 show the invention arms and four eccentics. Fig. 49 shows an arrangement in which the slot is located between the eccentrics and the toothed parts of the arms. Figs. 10 and il show the apapplicd to four plication of the invention to a structure in which the toothed member' S is the rim of a wheel with the rod c attached thereto. According to this embodiment of the invention, the teeth are formed on the internal rim of the wheel. Fig. l2 shows the invention embodied in connection with the external rim of a wheel.

One very important feature of the invention particularly applicable to transom operators is that the member 8 remains locked in position, when power is taken from the shaft 1, irrespective of the load upon the member 8. This may be attributed partly tothe frictional engagement of the peripheries of the eccentric with the arms. This locking effect is also increased by the frictional retardation of the slot 5 upon the pin 6; also it is partly caused by the frictional engagement of the teeth on the arm engaging with the teeth on the member S. There is a great deal less friction when the apparatus is being'operated than there is with the worm-gear. This T attribute tothe fact that the applicationV of power is in the same plane with the impressed motion.

`The device is also very much cheaper to .make than a worm-gear, for the reason that the eccentrics and arms may be stamped out of sheet metal.

All of the eccentrics and all of the arms being alike, and with the shaft of the shape described, the yparts are very easily assembled without danger of mis-alinement.

Tn accordance with the provisions of the patent statutes, T have described the prin- `ciple of my invention, together with the apparatus which T now consider to represent .the best embodiment thereof; but T desire to have it understood that the apparatus shown isrmerely illustrative and that the invention may be carried out in other ways.

Having now described my invention, what T claim as new and desire to secure by Let ters Patent, is

1. In a transom lifter, the combination of a rotary member carrying a plurality of eccentrics, an arm associated with each eccentric, a fixed guide associated with each arm,

a gear-tooth on each arm, in combination` with a second member also having gear teeth and adapted to be acted upon by said arm teeth in succession by the rotation of the rst member and a transom shifting member operatively connected to said second'meinbei'.

2. -Tn a transom lifter, the combination of a rotary member carrying aplurality of eccentr'cs of uniform size and symmetrically disposed, an arm associated with each eccentric, a fixed guide associated with each arm, a gear tooth on each arm, in combination with a second member also having gear teeth and adaptedto be acted upon by said arm teeth in succession byl the rotation of the lirst member and a transom shifting member operatively connected'zt l ber. Y l Y Y, p

3. In a. transom lifter, the combination of said second niem-V arotary .member carrying a plurality of eci centrics, an arm associated with each eccez/r tric, each aim having a notch, a pin within all of the notches, arxed guide associated withl each arm, a gear tooth on each arm, in combination with a second member also having gear teeth and adaptedto be acted upon by said arm teeth in succession by the` rotasliifting member operatively connected to said second member. 'Y

l. In a transom lifter, the combination of a rotary member carrying a plurality of eccentrics of uniform size and symmetrically disposed, an arm associated with each eccentric, each arm having a notch, a pin-within all of the notches, a gear tooth on each arm, in combination with a second Vmember also having gear teeth and adaptedto be acted upon by said armteeth in succes-sion by the rotation of the first member and a transom shifting member operatively connected to said second member. Y

`tion of the First member and a transom,v

5. A transom operator, which comprises a centrics of uniform size, and symmetrically disposed, an armassociated with each eccen- Y tric, a fixed guide associated with each arm, a gear tooth on each arm, in combination with a second member, and a connection between tlie second member and the transom, said second member having gear teeth adapt ed to be acted on by said arm tooth in sucj cession by therotation of the first member.

7. A transom operatonwliich comprises a rotary member carrying a plurality of eccentrics, an arm associated with each eccentric, each armhaving a notch, a pin withinV all of the notches, a gear tooth on each arm,

in combination with a second member, anda connection between the second member and the transom, said second member having gear teeth adapted to be acted on by said arm tooth in succession by the rotation of the first member.

8. A transom operator, which comprises a rotary member carrying a plurality of eccentrics of uniform size, and symmetrically disposed, an arm associated with each eccentric, each arm having a notch, a pin within all of the notches, a gear tooth on each arm, in combination with a second member, and a connection between the second member and the transom, said second member having gear teeth adapted to be acted on by said arm tooth in succession by the rotation of the first member.

9. A transom operator which comprises a shaft of polygonal cross-section, having sides equal in number to or multiples of the eccentrics, a plurality of eccentrics, each having an opening of the same shape as the cross-section of the shaft, said eccentrics being symmetrically disposed on said shaft, an arm associated with each eccentric, a iXed guide associated with each arm, a gear tooth on each arm, in combination with a second member, and a connection below the second member ,and the transom, said second member having gear teeth, adapted to be acted on by the teeth of the various arms in suc- Vcession by the rotation of the shaft.

This specification signed and witnessed this second day of March, 1914.

SAMUEL J. HOEXTER. lvitnesses HARRY JAMES BILL, A. L. LADD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

